基于生物质甘蔗渣的荧光碳量子点制备

Facile synthesis of fluorescent carbon nanodots derived from biomass bagasse by hydrothermal treatment

本实验以富含纤维素的废弃生物质甘蔗渣为原料，采用水热法合成了具有荧光性能的碳量子点。对碳量子点进行了表征，其粒径大小约为5～10 nm；在紫外灯照射下发蓝色荧光，对其荧光性能进行了研究，发现其具有多元激发、多元发射的性质。对其细胞毒性进行了研究，结果表明是一种生物相容性良好的标记材料。

We developed a hydrothermal carbonization route to prepare carbon quantum dots （CQDs） by using sugarcane bagasse-an agricultural waste as carbon precursor.The obtained CQDs had a size dis-tribution of 5 ~10 nm.The fluorescence property of the CQDs was the same as the other carbon dots, having multiple excitation and multiple emission.